<script setup>
import PageContainer from "@/components/PageContainer.vue";
import { ref } from 'vue'
import { Plus, Upload } from "@element-plus/icons-vue";
import { useUserStore } from "@/stores/index.js";
import { userUpdateAvatarService } from "@/api/user.js";

const userStore = useUserStore()
const imgUrl = ref(userStore.user.user_pic)
const uploadRef = ref()

const onSelectFile = (uploadFile) => {
  // 方法一 图片预览    将图片直接上传
  //imgUrl.value = URL.createObjectURL(uploadFile.raw)

  // 方法二 基于 FileReader 读取图片做预览   将图片转为 base64 格式
  const reader = new FileReader()
  reader.readAsDataURL(uploadFile.raw)
  reader.onload = () => {
    imgUrl.value = reader.result
  }
}

const onUpdateAvatar = async () => {
  // 发送请求更新头像
  await userUpdateAvatarService(imgUrl.value)
  // userStore 重新渲染
  await userStore.getUser()
  ElMessageBox.success('更新成功')
}
</script>

<template>
  <page-container title="更换头像">
    <el-upload
        ref="uploadRef"
        class="avatar-uploader"
        :show-file-list="false"
        :on-change="onSelectFile"
    >
      <img v-if="imgUrl" :src="imgUrl" class="avatar"  alt=""/>
      <el-icon v-else class="avatar-uploader-icon"><Plus /></el-icon>
    </el-upload>

    <br>
    <el-button @click="uploadRef.$el.querySelector('input').click()" type="primary" :icon="Plus" size="large">选择图片</el-button>
    <el-button @click="onUpdateAvatar" type="success" :icon="Upload" size="large">上传头像</el-button>
  </page-container>
</template>

<style lang="scss" scoped>
.avatar-uploader {
  :deep() {
    .avatar {
      width: 178px;
      height: 178px;
      display: block;
    }
    .el-upload {
      border: 1px dashed var(--el-border-color);
      border-radius: 6px;
      cursor: pointer;
      position: relative;
      overflow: hidden;
      transform: var(--el-transition-duration-fast);
    }
    .el-upload:hover {
      border-color: var(--el-color-primary)
    }
    .el-icon.avatar-uploader-icon {
      font-size: 28px;
      color: #8c939d;
      width: 178px;
      height: 178px;
      text-align: center;
    }
  }
}

.editor {
  width: 100%;
  :deep(.ql-editor) {
    min-height: 200px;
  }
}
</style>
